An issue in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via false link event messages sent to a master ONOS node.

published 2021-12-16 4 y ago modified 2026-06-17 4 mo ago also GHSA-2fqw-684c-pvp7 , EUVD-2021-2421

cvss: 8.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits: 0; none known

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-35213 updated 2026-11-07 cvss 8.1

atomix: Atomix 3.1.5 ONOS Node denial of service

Red Hat Fuse 7 atomix atomix Red Hat Integration Camel K 1 atomix atomix
affected: no fix planned “Will not fix”
Red Hat build of Quarkus io.quarkus.platform-quarkus-platform-config io.quarkus.platform-quarkus-platform-config Red Hat Integration Camel Quarkus 1 atomix atomix
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

docs.google.com https://docs.google.com/presentation/d/1i8tVVGE8z9Rtl9UTwktOJpkZwT4kBVLgIk307qMiw_8/edit?usp=sharing referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
NVD	2.0	5.5	AV:N/AC:L/Au:S/C:N/I:P/A:P
GitHub	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
maven	io.atomix:atomix	<=3.1.5	no fix listed

Classification

Weakness

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

docs.google.com /presentation/d/1i8tVVGE8z9Rtl9UTwktOJpkZwT4kBVLgIk307qMiw_8/edit?usp=sharing
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2020-35213
advisory
github.com /atomix/atomix
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary